Another Blonde Joke

One day a blonde woman entered an autobody shop claiming that she'd suffered extensive damage to her new car. The mechanic thought he'd have some fun with her so he told her that she didn't need him to fix all the dents. He said she could fix them herself by blowing into the tailpipe as hard as she could and they'd all pop out. The woman went home and proceeded to get down on her hands and knees in the driveway. She was blowing into the pipe as hard as she could and her face was turning purple when another blonde woman walked by and asked what she was doing. After hearing the whole story the second blonde pauses for a moment then responds, "Hello!!! The windows are down."